MAHLE RTI RHS650 - Manual (Page 7)

Page 6
RECOVERY / RECYCLING
5. If the charging cylinder becomes full during the RECOVERY/RECYCLING process, the RHS650
stops and the yellow lamp CYLINDER FULL lights up. The charging cylinder must be emptied
into an A/C system or a refrigerant cylinder before the process can be continued. See description
of the CHARGING process.
6. During the RECOVERY/RECYCLING process, oil might be removed from the A/C system. This
oil should be drained from oil drain valve (18) of the RHS650 into the plastic measuring cup. The
A/C system must be charged with a corresponding amount of oil. Follow the instructions from
the vehicle manufacturer and only use the specified oil type.
NOTE: It may be desirable to pre-fill the charging cylinder with new refrigerant. This is done by
connecting the low pressure (blue) hose to a cylinder of new refrigerant. Open the valve
on the new refrigerant cylinder and the service hose valve. Do not turn the cylinder
of new refrigerant upside down (only recover vapor).
Open valve 1. Set the process selector to RECOVERY/RECYCLING and turn on main
switch. Close the valve on the new refrigerant cylinder when the desired amount of
refrigerant has be recovered into the RHS650 charging cylinder. When the white lamp
RECOVERY/RECYCLING goes out the process is complete. Close valve 1.
NOTE: Sometimes it may be advantageous to recover from only the low pressure side of the
A/C system, as less oil will be removed. Make sure that only valve 1 is opened.